Seiko Cal. 0721 - 424

Seiko 0721-424

The 0721-424 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-5ff6114fa3dc]

Also known as: Helmet, Rally

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
45mm
Case Thickness
8.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
White
Jewels
26j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1981

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